JPS60132582A - Production of seethrough headrest - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for manufacturing a headrest for a vehicle, and more particularly to a method for manufacturing a headrest having a reticulated net in a portion of the headrest.

[Background of the invention] Traditionally, for example, when manufacturing a one-piece Heldrest, a cylindrical mold was extruded from a guide, the mold was closed before it cooled and solidified, and compressed air was blown from the bottom to make the mold. Blow molding is used in which the parison is pressed against the inner wall of the mold to form the outer shape of the skin, but at that time, a frame (stay) is inserted in advance into the parison, and after blow molding, a frame (stay) is inserted into the molded skin. The skin, frame, and trunk part were manufactured in one piece by filling with foam material and curing it to form a butt part and fixing the frame at the knot part.

Such a headrest is likely to cause problems such as the headrest obstructing rear visibility when driving a vehicle such as a car, or causing the head to become stuffy due to lack of ventilation.

For this reason, an annular headrest as shown in FIG. 1 has conventionally been considered, but these are difficult in terms of strength.

[Object of the Invention] An object of the present invention is to provide a method for manufacturing an integral headrest having a net portion in a part of the headrest that improves rearward visibility.

[Summary of the Invention] The present invention relates to a method for manufacturing a headrest in which a part of the headrest is made into a net shape, and in manufacturing the headrest,
First, a core material is formed by overlapping the mesh h-e over at least a portion of the frame. Then, a core is created by covering both sides of a desired portion of the core with a covering material, and a skin is formed using this core by blow molding. Then, the skin is filled with a foaming agent and foamed to form a butt part that becomes a cushioning material, and then the covering material, the skin, and the foamed part of the covering material part are removed to form the see-through radrest. The purpose of this invention is to provide a method for manufacturing the same.

Since the present invention is configured in this way, it is possible to provide a net-like portion in a part of the headrest, thereby providing a headrest with good rearward visibility and sufficient strength. Further, this headrest has the advantage that the head does not get stuffy, and it also has a good appearance.

[Embodiments of the invention] Hereinafter, one embodiment of the present invention will be described based on the drawings.

Fig. 2 is a sectional view illustrating the state in which the headrest skin is fitted into a mold for forming the headrest skin, Fig. 3 is an external view of the headrest completed by the method of the present invention, and Fig. 4 is a cover with a net attached. Another example of a frame covered with wood is shown,
FIG. 4A is a side view, and FIG. 4B is a front view.

First, as shown in FIG.
6 to form a core material S. The method for forming the core material S is to stretch a mesh net on one side of the frame 15 and attach it to the desired location using a fixing method such as driving a tacker or the like (not shown), but this method is not limited to this method. Any well-known method may be used. This net) 16 is made of painted metal, reinforced plastic (FRP), etc. in this example, but it is not limited to these, and any material that is not easily damaged may be used. A desired portion of the core material S, that is, a portion that is visible as a net when the product is completed, is covered on both sides with covering materials 17, 17 to form a core s18, and this core portion 18 is used to form a headrest skin by sheet blow molding. do. In other words, the mold 12 is made by dividing the sheet 10.11 made of vinyl chloride resin extruded from separate dies (not shown) from two extruders.
, 13, and this sea) 10
,．． Frame 1 with the above-mentioned net) 16 pasted between 11
5 and covering materials 17, 17 are inserted, and the molds 1, 2.13 are closed. Compressed air is blown into this closed Venus 12.13 to form the headrest skin.

At this time, the excess portions of sheets io, ii are removed from the mold 12.
It is cut and removed by clamping ゜13. Then, a foam material is filled into the cover through an opening (not shown) formed in a part of the headrest skin and foam-molded. After cooling the headrest skin molded in this manner, it is taken out from the mold and covered with the ring portions 17, 1.
7, the sheet 10.11 of the covering material 17.17, the foamed portion, etc. are cut out and removed to obtain a headrest 25 having a reticulated net portion in a part of the headrest as shown in FIG. Of course, the same effect can be obtained by extruding a circular parison from a die, inserting a frame with a net pasted from the bottom, clamping the mold, and blow molding.

FIG. 4 is a partial sectional view showing another embodiment of the core, in which a net 23 is placed and sandwiched between two frames 21 and 22.

In this way, since the net 23 is located in the center when the Herarest is completed, the head, especially the hair part, does not come into direct contact with the net 23, making it possible to obtain a headrest with good appearance and good balance. There is an effect that it can be done.

FIG. 5 shows an embodiment in which a baffle plate 27 is attached to the frame, and by providing this baffle plate 27, the volume movement caused by foaming of the foam material is guided in the direction of the corner of the cavity. It is possible to prevent damage to the butt portion.

[Effects of the Invention] Since the present invention is configured as described above, a net-like portion can be provided in a part of the headrest, thereby providing a headrest with good rearward visibility and sufficient strength. This headrest also has the advantage of keeping your head from getting stuffy.

[Brief explanation of drawings]

Fig. 1 is a diagram showing a conventional special-shaped headrest; Fig. 2 is a cross-sectional view illustrating the state in which it is fitted into a mold for molding the headrest skin; Fig. 3 is a completed product using the method of the present invention. Fig. 4 shows another embodiment of the frame fitted with a net and covered with a covering material, Fig. 4A is a side view, Fig. 4B is a front view, and Fig. 5 is an external view of a headrest with a net attached and covered with a covering material. FIG. 2 is an external view of a headrest using a plate. 10.11... Sheet, 12.13... Mold 15.
... Frame, 16.23... Net, 17... Covering material, 18... Core, 25... Headrest S...
Core material patent applicant 2 Tokyo Seat Co., Ltd. Representative patent attorney Atsushi Akiyama Figure 1 Figure 2

Claims (1)

[Claims] In a headrest comprising a frame, a skin, and a foam material, a core material is formed by overlaying a net over at least a portion of the frame that holds the headrest, and a core material is created by covering both sides of a desired portion of the core material with a covering material. A see-through headrest characterized in that the core is formed by filling and foaming a foaming material into the skin formed by blow molding, and then removing the covering material of the layer portion, the skin, and the foamed portion. manufacturing method.